
#include <iostream>

using namespace std;

class dog
{
public:
    dog():x(199), y(299){}
    void dis() const
    {
        cout<<"x="<<x<<endl;
        cout<<"y="<<y<<endl;
    }
    void dis()
    {
        y=132;
        input();
        cout<<"x="<<x<<endl;
        cout<<"y="<<y<<endl;
    }
    void input()
    {
        cin>>y;
    }

private:
    const int x;
    int y;
};

int main(void)
{
    dog dt;
    dt.dis();
    cout<<"===================================="<<endl;

    const dog dt1;
    dt1.dis();

    return 0;
}

